{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC 846B E6433","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC-846B-E6433","canonicalUrl":"https://icboms.com/infineon/BC-846B-E6433","factsUrl":"https://icboms.com/api/mcp/products/BC%20846B%20E6433","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC 846B E6433 NPN transistor, 65 V Vceo, 100 mA Ic, 250 MHz ft, 330 mW, SOT-23-3, Tape & Reel.","salesMarkdown":"The BC 846B E6433: NPN transistor in a surface-mount SOT-23-3 package. Rated for 65 V Vceo, 100 mA Ic, 250 MHz ft. The 65 V Vceo breakdown is the headline selection parameter — it comfortably covers 24 V and 48 V industrial buses with derating headroom, but it is not a 100 V part, so a 60 V nominal rail would leave no margin. The 100 mA continuous collector current is the DC limit; pulse currents can exceed this, but the 330 mW maximum power dissipation in the SOT-23 footprint is the real thermal constraint. At 25 °C ambient, 330 mW translates to roughly 110 mA at 3 V Vce — above that, junction temperature climbs toward the 150 °C(TJ) maximum. The 250 MHz transition frequency is high enough for low-frequency switching and audio-band amplification but not for RF front-end work above 100 MHz. ## Obsolete — what that means for procurement Infineon has marked the BC 846B E6433 as obsolete. No official successor listed. For dual-sourcing or a drop-in replacement, the base product number BC 846 covers multiple gain selections and package variants.","metaTitle":"BC 846B E6433 NPN transistor, 65 V, 100 mA, 250 MHz","metaDescription":"Infineon BC 846B E6433 NPN transistor in SOT-23, 65 V Vceo, 100 mA Ic, 250 MHz ft.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Power - Max":"330 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Obsolete","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Base Product Number":"BC 846","Operating Temperature":"150°C(TJ)","Frequency - Transition":"250MHz","Supplier Device Package":"PG-SOT23","Vce Saturation (Max) @ Ib, Ic":"600mV @ 5mA, 100mA","Current - Collector (Ic) (Max)":"100 mA","Current - Collector Cutoff (Max)":"15nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"200 @ 2mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"65 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f116cb5c3c26be07142f7ca5277776f6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BC 846B E6433 obsolete and what is the replacement?","answer":"Yes, the BC 846B E6433 is listed as obsolete by Infineon. No official replacement order code is published. A functionally equivalent NPN transistor in the same SOT-23 package with 65 V Vceo and 100 mA Ic can be sourced by reviewing the BC 846 family datasheet for other gain-grade variants (A, B, C) or by selecting a general-purpose NPN from the same voltage and current class."},{"question":"What is the closest pin-compatible alternative to BC 846B E6433 in this component family?","answer":"Within the BC 846 family, the BC 846A and BC 846C variants share the same SOT-23-3 footprint and 65 V / 100 mA ratings, differing only in the DC current gain range. The BC 846B E6433 is the 'B' grade with a minimum hFE of 200 at 2 mA / 5 V. The 'A' grade has a lower minimum gain, and the 'C' grade a higher one. Any of these can be a pin-compatible alternative if the gain specification still meets the circuit requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC-846B-E6433","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BC-846B-E6433 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}